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Thyroid eye disease: what is new to know?

第一作者:Li, Z

期刊: CURRENT OPINION IN OPHTHALMOLOGY, 2018; 29 (无)

Purpose of review The pathophysiology of thyroid eye disease (TED) is still not fully understood. However, recently described risk factors and molecular findings have brought new insights into the mechanisms of TED and could lead to the emerging use of more targeted therapies. This article aims to review the clinical findings of TED, and the most recent advances in our understanding of the risk factors and therapeutic options for TED. Recent findings Smoking has been recently shown to have an impact on specific gene expression involved in several disease-related pathways, which seems to be reversible with smoking cessation. This finding further emphasizes the importance of smoking cessation in the prevention and treatment of TED. Selenium deficiency and high-serum cholesterol have been described to be potential independent risk factors for TED and their management could decrease the incidence and severity of TED. In terms of therapeutic options, immunomodulatory medications have shown some promising results for disease control in TED over the past years, but further randomized prospective studies with larger sample sizes are still needed to prove their efficacy. A new technique of 32P brachytherapy was shown to have quick therapeutic effects on TED without significant side effects and could be a promising therapy for selected cases of TED. Summary TED is one of the most common autoimmune inflammatory disorders of the orbit. Although its pathophysiology remains unclear, newly described genetic findings and risk factors could help in explaining its occurrence and guide future therapies. Immunosuppressant medications are increasingly used in the management of TED, but further studies are needed to confirm their effectiveness.

IF:2.82

The use of optical coherence tomography in neuro-ophthalmology

第一作者:Chan, NCY

期刊: CURRENT OPINION IN OPHTHALMOLOGY, 2017; 28 (无)

Purpose of review In the last decade, with the advances of optical coherence tomography (OCT) technology, different imaging protocols and analysis algorithms have been introduced to maximize the potential of this diagnostic tool in the evaluation of different eye diseases. This review aims to provide an update on these additional features, with respect to the management of a diverse range of neuro-ophthalmologic conditions. Recent findings Macular ganglion cell complex (mGCC) analysis has been shown to be superior to peripapillary retinal nerve fiber layer (pRNFL) analysis in certain settings, such as differentiating Leber's hereditary optic neuropathy from functional visual loss; monitoring neurodegenerative diseases or multiple sclerosis; and predicting visual loss in nonarteritic ischemic optic neuropathy. mGCC analysis also demonstrates high correlation with perimetry and might serve as an early structural indicator of irreversible neuronal loss. Compared to pRNFL, retinal thickness analysis of the optic nerve head demonstrates better correlation with the severity of papilledema, thus enabling its possible application in detecting raised intracranial pressure, especially in the pediatric group. Upcoming research on emerging OCT technologies including OCT-angiography, enhanced depth imaging, retinal single-layer analysis and portable systems will hopefully further enhance the utility of OCT in the field. Summary It is crucial for neuro-ophthalmologists to be updated and familiar with these newer OCT imaging protocols and to make appropriate choices for different clinical scenarios, in order to optimize the diagnostic sensitivity and specificity.

IF:2.53

Avoiding the Hughes flap in lower eyelid reconstruction

第一作者:Marcet, MM

期刊: CURRENT OPINION IN OPHTHALMOLOGY, 2017; 28 (无)

Purpose of reviewTo review current surgical practices of lower eyelid reconstruction with a focus on recent studies.Recent findingsCombination techniques and new flap techniques offer efficacy comparable with existing reconstructive approaches, with the advantage of less local trauma. Inappropriate handling of posterior lamellar grafts, such as kerfing, may predispose to graft failures. Modified Hughes procedure is a favorable choice for large lower eyelid reconstruction; however, it requires temporary eye closure. Other surgical options have been developed to achieve a 1-stage procedure without the need of eye closure. These include the Smith-modified Kuhnt-Szymanowski procedure and the use of flaps. For posterior lamellar grafts, both nasal septal and ear cartilage donor tissue produce esthetically and functionally satisfactory outcomes and comparable efficacy. However, the ear cartilage carries a lower risk of donor site complications.SummaryLower eyelid reconstruction remains a challenge, especially for large or near total defects. Recent studies have explored modifications and alternatives to the conventional Hughes flap. New surgical procedures give surgeons more options. Taking into account the growing spectrum of reconstructive techniques, an individualized approach may facilitate better functional and esthetic outcomes.

IF:2.53

Practical approach to syndromic pediatric retinal dystrophies

第一作者:Sadagopan, KA

期刊: CURRENT OPINION IN OPHTHALMOLOGY, 2017; 28 (无)

Purpose of reviewThe purpose of this review is to outline those systemic disorders that are associated with pediatric retinal dystrophy, summarize important retinal, and nonretinal clues that aid in syndromic diagnosis, provide an approach for ophthalmic and systematic systemic examination, describe the important systemic findings seen in pediatric syndromic retinal dystrophies and highlight the role of genetic testing.Recent findingsWith profound advances being made in the field of molecular genetics, a definitive molecular etiology is increasingly being made even in rare and unusual forms of retinal dystrophies. Early recognition and precise diagnosis of a syndromic association has major clinical implications. It not only ensures early and holistic care to the child but also provides an opportunity for the parents in better understanding the nature and course of the disorder. It greatly aids in genetic counseling.SummaryMany syndromic retinal dystrophies may present initially to the ophthalmologist long before they present to the pediatrician with systemic symptoms. The intent of this article is to act as a resource in assisting the ophthalmologist to arrive at an early systemic diagnosis.

IF:2.53

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